JPS5525215A - Automatic equalizer - Google Patents

Automatic equalizer

Info

Publication number
JPS5525215A
JPS5525215A JP9727278A JP9727278A JPS5525215A JP S5525215 A JPS5525215 A JP S5525215A JP 9727278 A JP9727278 A JP 9727278A JP 9727278 A JP9727278 A JP 9727278A JP S5525215 A JPS5525215 A JP S5525215A
Authority
JP
Japan
Prior art keywords
circuit
phase
output signal
supplied
correction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9727278A
Other languages
Japanese (ja)
Other versions
JPS6111494B2 (en
Inventor
Hideo Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9727278A priority Critical patent/JPS5525215A/en
Publication of JPS5525215A publication Critical patent/JPS5525215A/en
Publication of JPS6111494B2 publication Critical patent/JPS6111494B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00Adaptive networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

PURPOSE:To give correction to the phase fluctuation and the inter-code interference without lowering the equalization accuracy by using the phase rotary circuit featuring a simple constitution and with no use of the complicated phase rotary circuit containing the multiplier circuit. CONSTITUTION:DC input signal 101 is supplied to convolutional adder circuit 102. The output signal of circuit 102 is supplied to decision circuit 104 deciding the transmission code via phase correction circuit 103 which gives the phase correction based on the follow-up phase supplied through terminal 18, thus delivering decision output signal 105. Then the output signal of circuit 102 is supplied to subtractor circuit 106 along with the output signal phase reverse correction circuit 201 which gives the phase reverse correction based on the follow-up phase supplied through terminal 109 to decision output signal 105, thus growing the equalization residual error signal. The output signal of circuit 106 is used as the control signal to give correction to the tap coefficient of circuit 102.
JP9727278A 1978-08-11 1978-08-11 Automatic equalizer Granted JPS5525215A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9727278A JPS5525215A (en) 1978-08-11 1978-08-11 Automatic equalizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9727278A JPS5525215A (en) 1978-08-11 1978-08-11 Automatic equalizer

Publications (2)

Publication Number Publication Date
JPS5525215A true JPS5525215A (en) 1980-02-22
JPS6111494B2 JPS6111494B2 (en) 1986-04-03

Family

ID=14187883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9727278A Granted JPS5525215A (en) 1978-08-11 1978-08-11 Automatic equalizer

Country Status (1)

Country Link
JP (1) JPS5525215A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145716A (en) * 1982-02-25 1983-08-30 Kazuo Saotome Graft polymer composition
JPS61111025A (en) * 1984-11-05 1986-05-29 Nec Corp Automatic equalizer
US5891962A (en) * 1994-09-20 1999-04-06 Mitsui Chemicals, Inc. Transparent, rubber-modified styrene resin and production process thereof
WO2002069592A1 (en) * 2001-02-27 2002-09-06 Matsushita Electric Industrial Co., Ltd. Decoder and decoding method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145716A (en) * 1982-02-25 1983-08-30 Kazuo Saotome Graft polymer composition
JPS61111025A (en) * 1984-11-05 1986-05-29 Nec Corp Automatic equalizer
US5891962A (en) * 1994-09-20 1999-04-06 Mitsui Chemicals, Inc. Transparent, rubber-modified styrene resin and production process thereof
WO2002069592A1 (en) * 2001-02-27 2002-09-06 Matsushita Electric Industrial Co., Ltd. Decoder and decoding method

Also Published As

Publication number Publication date
JPS6111494B2 (en) 1986-04-03

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